Petroleum products. Total sediment in residual fuel oils

Storage tanks for petroleum products must comply with the requirements of technical, technological and environmental safety. The corrosion rate increases with prolonged storage of petroleum products in tanks. To prevent the destruction processes for reliable operation of tanks caused by metal corrosion some solutions are needed. Active formation of general sludge occurs in the storage of fuel oil, which contains corrosion-active substances, because of the incompatibility of fuels. The paper assesses the effect of total oil sludge in tanks on the corrosion process and on the reliability of tanks. Studies of the formation of a common sediment caused by incompatibility when mixing petroleum products are conducted. The paper proposes a solution which allows to reduce the formation of total oil sludge and to ensure reliable operation of reservoirs.

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Mathematical modeling of a new method of transportation of viscous petroleum products at low air temperatures

Journal of Physics Conference Series ◽

10.1088/1742-6596/2131/2/022057 ◽

2021 ◽

Vol 2131 (2) ◽

pp. 022057

Author(s):

V I Moiseev ◽

V A Ksenofontova

Keyword(s):

Petroleum Product ◽

Simulation Modelling ◽

High Viscosity ◽

Petroleum Products ◽

Oil Products ◽

New Method ◽

The Finite Element Method ◽

Viscous Oil ◽

Air Temperatures ◽

Fuel Oils

Abstract High viscosity petroleum products such as fuel oils and cracking residues are widely used as marine and boiler fuels both in Russia and in its exports. Conveying viscous petroleum products at low air temperatures has a high cost due to the unloading and cleaning processes of the transport tanks. Refined petroleum product cools and solidifies during transportation, becoming highly viscous, making it impossible to drain it without preheating to restore fluidity. Emerging difficulties are common to all countries with long winters and geographically wide areas. To justify a new method of rail transport of viscous petroleum products while maintaining their high temperature and fluidity by suppressing the natural convection of the petroleum product at the stage of filling the tanker. Temperature field calculations using the finite element method and the ANSYS R18.2 package are presented. The business process of the proposed transport method is universal for all modes of transportation. Using Petri nets and simulation modelling, it is investigated using the example of cleaning a tank car boiler from highly viscous residual oil products. You must perform these operations periodically during the operation of the tank wagon, and they are mandatory before every scheduled inspection and repair. Viscous oil products can be transported in a new way, the duration of the cleaning process of the tank wagon boiler is reduced by three times and the amount of water consumed is reduced by one and a half times.

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Research of the Influence of Storage Conditions of Residual Fuel Mixture in Tanks on Sedimentation

Oil and Gas technologies ◽

10.32935/1815-2600-2021-133-2-61-64 ◽

2021 ◽

Vol 133 (2) ◽

pp. 61-64

Author(s):

R. R. Sultanbekov ◽

◽

A. M. Schipachev ◽

Keyword(s):

Laboratory Experiments ◽

Storage Time ◽

Storage Temperature ◽

Fuel Mixture ◽

Petroleum Products ◽

Storage Conditions ◽

Practical Significance ◽

And Storage ◽

Total Sediment

The article analyzes the problem of loss of stability and compatibility of residual fuels and their mixtures during storage. Studies of the effect of storage conditions of residual fuels on the formation of sediments are carried out and the results of these studies are presented. The laboratory determined the quality indicators of samples of petroleum products and carried out studies to determine the effect of time and storage temperature on the formation of precipitation of incompatible residual fuels. The range of temperatures considered during the research was from 30 to 100 ° C, at these temperatures the samples of the fuel mixture were kept for a day in an oil bath, then filtering and quantitative determination of the total sediment were carried out. A number of laboratory experiments were also carried out to determine the effect of the storage time of the fuel mixture on sedimentation at temperatures of 40 and 50 ° C, which correspond to operating temperatures and 100°C, at which a qualitative indicator of the total sediment is determined according to GOST 33360. The results obtained show the relevance and practical significance of these studies for fuel terminals and tank farms.

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